Soldering-iron heater.



UNITED STATES PATENT FFICE.

MICHAL J. NASII,OF ST. LOUIS, MISSOURI.

SOLDERING-IRON HEATER.

SPECIFICATION forming pare of Letters Patent No. 71 1,584, dated october21, 1902.

Application filed November 27, 1901. Serial No. 83,931. (No model.)

To all whom, it may concern;

Be it known that LMICHAELJ. NASH, a citizen of the United '1St'ates,residing at St.- Louis, State of Missouri, have invented cer-I tain newand useful Improyements in Solder'- ing-Iron Heaters, of which thefollowing is a full, clear, and exact descriptioin'reference being hadto the accompanying drawings, forming a part hereof.

My invention has relation to improvements in soldering-iron heaters; andit consists in the novel construction and arrangement of parts morefully set forth in the specifi-cation and pointed out in the claims.

In the drawings,.Figure 1 is a top plan of the heater with hood removed.Fig. 2 is a vertical longitudinal section on line 2 2 of Fig. 1 withhood, however, in place. Fig. 3

is a similar section showing the soldering-iron in place and thefeed-valve open. A Fig. 4 is a transverse verticalsection on line4 4 ofFig. 1 withhood in place. Fig.5 is an end view looking toward the left`on Fig. 2. Fig. 6 is' an enlarged sectional detail of the feed-valve,showing the latter partially closed. Fig. 7 is a transverse section online 7 7 of'Fig. 8 looking in the direction of the arrow. Fig. 8 is adetached View of the valve, and Fig. 9 is a vertical section on line 9 9of Fig. 8.

The object of my invention is to construct a vapor-burning orgas-burning soldering-iron heater in which the ame by which the iron isheated is automatically extinguished (or the supply of gas cut oft).bythe removal of Y the iron from the heater, and, further, to providemeansfor automatically igniting the extinguished iiame by a reinsertionof the iron into the heater. K

A further object is to construct a-heater which shall be simple,durable, and inexpensive, and one possessing further and otheradvantages better apparent from a detailed description of the invention,which is as follows:

Referring to the drawings, 1 represents a suitable supporting-baseforthe support of the gas-burner pipes 2 2, the` latter being closed atoneend and being provided with peripheral perforations 3 for the issue ofthe darne. The opposite end of each'pipe 2 is with aseries ofair-openings 5 for the free admission of airrthereinto and itssubsequent mixture with the gas coming from the main gas-supplypipe G.The latter is provided -with an ordinary gas cock or valve 6 and aterminal nozzle?, to be attached to a hose 4leading to any suitablesource of gas-supply.

(Not shown.) The pipe G is coupled to the air-chamber 4 by avalve-casing 8, the latter being provided with hollow arms 9, screweddirectly to the pipe G, and with screw-threaded coupling-nozzles 10,secured directly to the chamber 4, the gas being delivered through thepassage 11 of said arms and nozzles. The passage 11 is controlled by aconical Valve 12, whose stem 13 projects beyond the bottom of thevalve-casing, said bottom being closed by a screw-cap 14, with whichAisv formed integrally an arm 15, provided with a free' depending ordownwardly-dedected portion or extension l15.

` Pivotally secured to the extension 15 and -whichv is to normally forcethe valve upward, 'and thus cutyo the supply of gas from the passagesllto the air-chamber 4. When, however, a soldering-iron Iis laid acrossthe loop 17, (see Fig. 3,) the weight thereof depresses the lever 16,compressing the spring and drawing the valve downward sufficiently toallow the gas to pass freely into the chamber 4 and-pipe 2 and there beignited for purposes, of heating the iron. The ignition is usuallyaccomplished by means ot' a small flame at the outer end of theigniting-tube 18, whose opposite end taps the valve-casing below thevalve, the tube then curving upward to a suitable point in proximitytothe series of openings 3, formed in the pipes 2. The tube 18 is keptsupplied with a small quantity of gas, which is constantly fed theretothrough the peripheral feed port or groove y19, formed on the valve,said port (see Fig. 2) be- IOO ing in position to establishcommunication between the gas-supply pipe G and pipe 18 the moment thelever 16 is restored to its normal raised position upon the removal ofthe soldering-iron, the gas of one burner-pipe being ignited from thetube 18 of the adjacent pipe. Should it be desirable not to extinguishthe ame upon the removal of the solderingiron from the heater, the valve12 may be intercepted before it is forced to its completelyclosedposition by the spring S by the adjustable intercepting-screw 20,mounted on top of the valve-casing, (see Fig. 6,) the valve thusintercepted permitting a limited supply of gas to reach the pipes 2, andthus cause the latter to burn with a low flame upon the removal of theiron from the heater. This expedient is generally resorted to in heatershaving but a single burner-pipe 2 and where it is not desirable that theflame be wholly extinguished. OE course with the use of two pipes 2 andtwo irons it is preferable that the iame of one pipe 2 shall be whollyextinguished while its neighbor is heating the iron placed over it. l

Forming a part of the base l is a coverframe l', designed to besuperposed over the pipes 2 2 and being provided with a ledge L for thesupport of the handle-bar of the soldering-iron. The cover-frame lserves to support a hood H, of fire-brick, covered with an outermetallic plate, said hood forming a firechamber within it from which thegases escape through the line 2l. The hood serves to retain as much ofthe heat as possible during the heating of the iron. The hood is held inposition on the frame l' by the lugs 22, cast thereon.

It is to be understood, of course, that l may depart from the details ofconstruction without departing from the spirit ot' my invention; nor isits application to be limited to heating soldering-irons.

Having described my invention, what I claim isq l. A soldering-ironheater comprising one or more gas-burner pipes having suitableperipheral perforations, an air-chamber at one end thereof, avalve-casing coupled to said chamber, a valve in said casing forcontrolling the admission of gas into said air-chamber, a stem carriedby said valve and projecting from the casing, a lever pivoted at one endand having an intermediate point pivotally secured to the outer end ofthe stem, the free end of the lever terminating in a loop encircling theburner-pipe and adapted to be actuated in one direction upon the placingof thev iron over the iiame, thereby opening the valve, the latterautomatically closing upon the removal of the iron, and a lighting-tubeleading from the valve-casing of one burnerpipe to a point in proximityto the openings of the adjacent burner-pipe, substantially as set forth.

2. A soldering-iron heater comprising one or more gas-burner pipes, agas-supply pipe therefor, a valve-casing interposed between eachburnerpipe and the snpplypipe, a spring-actuated Valve in each casing, afeedport formed in each Valve, a lightingor igniting tube leading fromthe valve-casing to a point in proximity to the flame-openings of theburner-tube, a stem for each valve, a screw-cap closing the bottom ofeach valvecasing, an arm forming an integral part of each screw-cap, alever having one end pivotally secured to said arm, and an intermediatepoint pivotally coupled to the outer projecting end of the stem, theopposite and long arm of each lever terminating in a loop embracing thegas-burner pipe, the loop serving to support the soldering-iron and anadjusting-screw carried by the valve-casing, the parts operatingsubstantially as and for the purpose set forth.

In testimony whereof l affix my signature in presence of two witnesses.

MICHAEL J. NASH.

l/Vitnesses:

EMIL S'rAREK, M. J. Hoc-AN.

